Microscale Marangoni actuation: All-optical and all-electrical methods
Microscale Marangoni actuation: All-optical and all-electrical methods
复制标题
DOI：
10.1016/j.ultramic.2005.12.018
复制
发表时间：
2006-06-01
期刊：
影响因子：
2.2
通讯作者：
Thundat, T.
中科院分区：
文献类型：
--
作者：
Farahi, R. H.;Passian, A.;Thundat, T.
我们目前的实验结果，从一个全光学微流体平台，可以补充薄膜全电网络。使用这些配置，我们已经研究了硅油，甘油，和1，3，5-三硝基甲苯在开放的表面上通过生产来自热梯度的表面张力梯度的微流体对流系统。我们表明，可以利用表面等离子体激元和/或接合单独可寻址的电阻热元件创建足够的局部热变化。这两项研究都是通过Marangoni力来操纵流体的，每一项都有其独特的可利用的优势。金属箔中的表面等离子体激元激发是许多物理、化学和生物传感应用的驱动引擎。阐明，第一次，在微流体的等离子体激元的概念，我们的研究结果，从而展示了巨大的潜力，同时流体驱动和传感。(c)2006 Elsevier B. V.保留所有权利。
We present experimental results from an all-optical microfluidic platform that may be complimented by a thin film all-electrical network. Using these configurations we have studied the microfluidic convective flow systems of silicone oil, glycerol, and 1,3,5-trinitrotoluene on open surfaces through the production of surface tension gradients derived from thermal gradients. We show that sufficient localized thermal variation can be created utilizing surface plasmons and/or engaging individually addressable resistive thermal elements. Both studies manipulate fluids via Marangoni forces, each having their unique exploitable advantages. Surface plasmon excitation in metal foils are the driving engine of many physical-, chemical-, and bio-sensing applications. Incorporating, for the first time, the plasmon concept in microfluidics, our results thus demonstrate great potential for simultaneous fluid actuation and sensing. (c) 2006 Elsevier B.V. All rights reserved.